dorsal/arxiv
View SchemaSpectrum of Neutral Helium in Strong Magnetic Fields
| Authors | Matthew D. Jones, Gerardo Ortiz, David M. Ceperley |
|---|---|
| Categories | |
| ArXiv ID | physics/9811041 |
| URL | https://arxiv.org/abs/physics/9811041 |
| DOI | 10.1103/PhysRevA.59.2875 |
Abstract
We present extensive and accurate calculations for the excited state spectrum of spin-polarized neutral helium in a range of magnetic field strengths up to $10^{12}$ G. Of considerable interest to models of magnetic white dwarf stellar atmospheres, we also present results for the dipole strengths of the low lying transitions among these states. Our methods rely on a systematically saturated basis set approach to solving the Hartree--Fock self-consistent field equations, combined with an ``exact'' stochastic method to estimate the residual basis set truncation error and electron correlation effects. We also discuss the applicability of the adiabatic approximation to strongly magnetized multi-electron atoms.
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"abstract": "We present extensive and accurate calculations for the excited state spectrum\nof spin-polarized neutral helium in a range of magnetic field strengths up to\n$10^{12}$ G. Of considerable interest to models of magnetic white dwarf stellar\natmospheres, we also present results for the dipole strengths of the low lying\ntransitions among these states. Our methods rely on a systematically saturated\nbasis set approach to solving the Hartree--Fock self-consistent field\nequations, combined with an ``exact\u0027\u0027 stochastic method to estimate the\nresidual basis set truncation error and electron correlation effects. We also\ndiscuss the applicability of the adiabatic approximation to strongly magnetized\nmulti-electron atoms.",
"arxiv_id": "physics/9811041",
"authors": [
"Matthew D. Jones",
"Gerardo Ortiz",
"David M. Ceperley"
],
"categories": [
"physics.atom-ph",
"physics.comp-ph"
],
"doi": "10.1103/PhysRevA.59.2875",
"title": "Spectrum of Neutral Helium in Strong Magnetic Fields",
"url": "https://arxiv.org/abs/physics/9811041"
},
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